Screw type blind rivet driver adapter

Abstract

An apparatus for setting screw type blind rivets including a power drill having a laterally offset drilling head, and an adapter therefor interchangeable with the normal drill bit, which adapter has a laterally elongated slot adapted for receiving the flatted mandrel of the rivet while setting the rivet.

I claim: 
     
       1. An adapter for a power drill for setting screw type blind rivets, said rivets comprising a threaded mandrel having a driving end portion with parallel driving flats machined down to at least the minor diameter of the threads of said mandrel, which adapter consists essentially of a cylindrical body having an axis, said body further having a threaded end portion and an opposite end having a laterally elongated slot therein, said slot having a major and minor diameter with the major diameter of the slot extending transverse to said cylindrical body axis, and forming a shape complementary to said driving end portion of said rivet mandrel, said slot having positioned symmetrically about the rotational axis of said adapter, said slot being adapted to receive the said flatted mandrel of said rivet therein. 
     
     
       2. An apparatus for setting screw type blind rivets, said rivets comprising a threaded mandrel having a driving end portion with parallel driving flats machined down to at least the minor diameter of the threads of said mandrel, which apparatus comprises, in combination: a motor means; a setting adapter consisting essentially of a cylindrical body having an axis, said body further having a threaded end portion and an opposite end having a laterally elongated slot therein, said slot having a major and minor diameter with the major diameter of the slot extending transverse to said cylindrical body axis, and forming a shape complementary to said driving end portion of said rivet mandrel, said slot being positioned symmetrically about the rotational axis of said adapter, said slot being adapted to slidably receive the said flatted mandrel of said rivets therein; and a power transmission means operably connected to said motor means and having a threaded socket for receiving the threaded end portion of said setting adapter, for transmitting rotation from said motor means to said setting adapter. 
     
     
       3. The apparatus of claim 2 wherein said power transmission means has said socket laterally offset from said motor.